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Protect your Business with these Active Directory Security Best Practices

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Every organization's information security teams safeguard AD because it is required for a variety of vulnerable functions such as network access, credentialing, and authentication. In addition, every time users, applications, IoT devices, and other critical network connections connect to an enterprise's systems, they require AD. Knowing this fact, hackers always target an active directory. Therefore, businesses must adhere to active directory best practises.

The 2018 healthcare.gov hack is one example of a severe AD breach. Using stolen credentials, attackers could access the database and expose over 75,000 files containing personal data (PII).

Another example is how hackers breached Virgin Mobile's office network in Saudi Arabia, gaining access to the company's email system and Active Directory domain controller, and selling stolen data on private dark web forums.

Semperis, a pioneer in identity-driven cyber resilience for businesses, conducted a survey on cyber disasters and found the following:

  • 84% of organizations consider that impact of an Active Directory attack can jeopardize businesses.
  • 97% of organizations believe that AD is mission-critical.

In this article, we will discuss a few critical Active Directory Security best practises that businesses should follow to strengthen their defences against cyberattacks and fraud.


Role of Active Directory Security in Cyber Attacks

An Active Directory security strategy that is proactive and dynamic but is not prioritized can have severe consequences. Active Directory is a significant target for cybersecurity hackers because it centralizes user access and authorization across all company levels. Once inside the system, cyberattackers have the ability to raise their privileges on a regular basis, granting them access to a wide range of network resources. One security breach in Active Directory can therefore put a company's entire digital infrastructure at risk, allowing hackers to steal sensitive data from all user accounts, databases and apps.


What are Best Practices for Active Directory Security?

Security experts have developed a set of best practices to combat the numerous flaws and exploits that can be used to gain access to Active Directory. Let us look into some of them.


Maintain an Inventory

You must know everything there is to know about an AD to keep it clean and secure. Therefore, you should document naming standards and critical security regulations in addition to every user, service account, machine, and access group.

A detailed, comprehensive inventory of your entire system is the most effective active directory security strategy for adhering to the highest standards of AD cybersecurity. Identifying and categorizing all of the computers, devices, users, domains, and name conventions for your organisational units should be among your top priorities.


Multi-Factor Authentication (MFA)

  • MFA blocks more than 99.9 percent of account compromise attacks.

According to Microsoft, “You can help prevent some of these attacks by banning the use of bad passwords, blocking legacy authentication, and training employees on phishing. However, one of the best things you can do is to just turn on MFA.”

Multi-factor authentication is another critical active directory best practise that organizations should follow. Hackers can easily access remote users' computers, often without their knowledge. Using multi-factor authentication (MFA), companies can protect remote devices effectively. Before granting access to an MFA solution, a user must pass two or more verifications successfully. This effectively blocks hackers from gaining access to active directories.

The current multi-factor authentication methods include push notification, one-time password, email/SMS code, two-factor token, and biometrics. The following data illustrates how organizations fare with multi-factor authentication.

  • Only 26% organizations use multi-factor authentication.
  • With 68% of use, mobile push notifications are the most common authentication method.


Establish a Strong Password Policy

Enforcing a strong password policy is another critical best practise for active directory security. AD should be able to force users to change their passwords on a regular basis.

Password policy can be used to improve network security by imposing stricter account lockout settings on privileged accounts. If users who have access to sensitive data and applications are locked out of their accounts, they will face a more involved authentication process.


Limit Access to a Privileged Group


"Practice the principle of least privilege. Do not log into a computer with administrator rights unless you must do so to perform specific tasks. Running your computer as an administrator (or as a Power User in Windows) leaves your computer vulnerable to security risks and exploits. Simply visiting an unfamiliar Internet site with these high-privilege accounts can cause extreme damage to your computer, such as reformatting your hard drive, deleting all your files, and creating a new user account with administrative access." 

- Indiana University (Best practices for computer security)

Employee levels define the level of access an employee requires to perform their job. Access to Active Directory should be restricted to employees who require it to perform their jobs properly. Complete access is provided to domain administrators and other privileged groups.

Limiting AD access to a privileged group is an excellent active directory security best practice to avoid frauds and safeguard your business.


Educate Your Employees

One of the main challenges of ensuring cybersecurity is that most employees are unaware of the vulnerabilities. Therefore, businesses must educate employees about the risks associated with gaining access to Active Directory and other official business accounts. As a result, cybersecurity is everyone's responsibility, not just the IT team.

Summing Up

Active Directory is the most vulnerable document in a company because it contains sensitive information that can put organisations at risk. Because of this, it is the responsibility of every employee to investigate and stay protected. Top IT management has to ensure everyone follows the cybersecurity policies within the company monitoring it regularly, especially the active directory best practices set within the company.


Frequently Asked Questions


Why is it essential to protect your Active Directory?

If a cyber-attacker gains access to your Active Directory, they will have access to your entire connected database, user accounts, all kinds of information, and applications. This could put your business at risk.


Can active directories be hacked?

Yes, active directories can be easily hacked. Recent cyberattacks have frequently targeted enterprises' active directories, which manage thousands of computers and user accounts.

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It is needed to increase the operational efficiency of organizations ranging from education, healthcare, financial institutions, and others. A compliance program equips company personnel with the resources necessary to develop confidence in their compliance efforts, allowing them to concentrate on running their organization. In the subsequent paragraphs, we shall discuss the approach that should be used to build a robust compliance program. The scope of the compliance program for which we will build is the first and most important step we take. The following procedures, which are listed below, may be included in the scope of the enterprise: Access Management Vulnerability and Patch Management Asset and Configuration Management Logging and Monitoring Risk Management Physical and Environmental Security Privacy Governance (Policies & Procedures & Awareness) End Point Security Change Management Incident and Problem Management, Capacity and Availability Vendor Management Application Security Once the scope is identified, it is easier to move forward with the design of the compliance program. Now we define a benchmark for measuring the compliance level of each of these processes. For e.g., if we take end point security into consideration, the percentage of security patches deployed or implemented on the servers and workstations must comply with the benchmark or compliance level percentage formerly identified and agreed upon. Then we analyze the data collection at a given point of time for each of these processes that provide us with the current posture. The data collection is to be done by various tech teams and can be in the form of reports, logs, or any raw form of data. A thorough review and analysis of the data collected is done against the benchmark to identify the gaps. This is an important step and the most crucial one, as any lack here may result in a security breach. For example, if we take vulnerability management into consideration and we analyze that the remediation of vulnerabilities for a quarter is falling short of the benchmark percentage, then such un-remediated vulnerabilities in turn actually expose the servers and systems to serious security breaches, and hence effort must be taken to remediate such findings within the stipulated time. "It is important to recommend solutions and a roadmap to close the gaps within a specified period. 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Building a compliance program is neither a simple nor an inexpensive task. Since compliance departments do not generate income, it can be tempting to disregard compliance as a cost center. This would be a mistake. A compliance breach has the ability to do severe damage to a business, or in the worst-case situation, to completely destroy it (as famously happened to Enron Corporation). Listed below are a few of the advantages that a compliance program offers: A compliance program indicates the organizations' dedication to ethical behavior It minimizes the likelihood of violations, establishes a means for detecting violations sooner rather than later, and establishes a procedure for swiftly and efficiently responding to violations It will minimize the risk of severe consequences in the event of a violation An effective compliance program in business operations reduces compliance risk and business drag The importance and complexity of compliance programs have increased in recent years, as has the number of organizations using them. It has emerged as a critical component for employees, investors, regulators, and everyone else who is concerned with the operation, protection, and evaluation of a company.

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Article | October 13, 2021

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Ransomware usually stops the user from using the system, programs, or files. Hackers ask you to pay a ransom to regain control of the PC. You may have to pay to avoid losing everything. As backups may not provide complete protection against ransomware attacks, this malware is considered essential. It shows the importance of depending upon a professional security service. Read the article to know more about how to detect and prevent potential data breaches through ransomware effectively. How to Detect Ransomware Attacks It is hard for traditional antivirus software to detect ransomware because this advanced malware uses a set of complex evasion techniques. Therefore, it has become essential to educate yourself and your employees on ways to detect ransomware before it damages data in your system. Ransomware creators apply advanced social engineering tricks and military-grade encryption algorithms to take control of your system and encrypt your data. Unfortunately, it becomes difficult to recognize which files are infected as the ransomware can scramble files. In 2018, 180,000 users globally had been infected with ransomware. Due to the increasing number of ransomware attacks, it has become imperative to know how to detect and prevent ransomware attacks in time. Below are some of the tips on how to detect ransomware. Through a similar-looking email account, ransomware creators send malicious emails. For example, they use capital letters instead of the small letters in the original email ID. So, it is important to learn how to spot ransomware by paying close attention to the email addresses. Another thing is to check the content of the email thoroughly, especially if it has sensitive information. Modern ransomware creators are so sophisticated that they even cleverly imitate emails and even the writing voice of the institution or person. Do not do anything suggested in the mail content if you sense anything strange. The best thing to do is to call the person or organization involved to check the email's authenticity. If you doubt the authenticity of the email, do not click on the links in the email immediately. Closely assessing the email can give you hints as to whether the email is genuine or not. In addition, you can check for unusual domains and spelling errors in the email. Another effective way to detect ransomware is to be careful while downloading attachments. Ransomware creators hide it in an encrypted zip file. You won’t be able to see the malicious file encrypted until you extract it from the file. Tips to Prevent Ransomware Attacks Avoid Providing Personal Data to Unknown Do not give out personal information if you receive a call, text, or email from an unknown source asking for it. Before a ransomware attack, there is a possibility that cybercriminals may try to obtain personal information. This information can be used to target individuals personally through phishing emails. The goal is to get you to open a malicious attachment or link. Permitting the perpetrators to access data to make their trap more plausible is not a good idea. If a corporation contacts you for information, ignore the request and contact the company on your own to confirm that it is legitimate. Get Security Software Assistance As cybercrime increases it becomes essential to have ransomware protection. Use a comprehensive internet security solution like Kaspersky Internet Security to protect your PC from ransomware. Software stops corrupted files from being downloaded or streamed, preventing ransomware from getting into your system and keeping hackers away. Back up your data It is always a good idea to keep a backup of your data. In case you are hit by ransomware, you will know that your data is safe. Keep everything on a hard drive, but don't leave it attached to your computer while you're not using it. Leaving the hard drive attached to your system can compromise the data if you become a victim of ransomware. The data inside the hard drive can get encrypted. With cloud storage solutions, you can also go back to previous versions of your files. As a result, if ransomware encrypts them, you should be able to restore an unencrypted version using cloud storage. Click Only on Verified Links Clicking links on unfamiliar websites or in spam emails should be avoided. One way for your computer to become infected is through downloads that begin when you click on malicious links. When ransomware infects your computer, it either encrypts your files or locks down your operating system. Once the ransomware has anything to hold as a 'hostage,' it will demand to unlock your files. The simplest solution is to pay the ransoms. However, this is what the criminal wants you to do, and paying the ransom does not guarantee that you will be able to access your device or data. Do Not Download Software from Unknown Websites To make sure that you do not get ransomware, don’t download software or media assets from unknown websites. If you want to download something, go to a site that has been verified and is reputable. Most reputable websites will have trust indicators that you can spot. For example, type “https” into the search field to see if the site uses “https” rather than “http”. A shield or lock symbol may appear in the address bar, to confirm that the site is secure. If it’s something that you want to download for your phone, be sure it's from a trusted source. For example, Android users should download apps from the Google Play Store, while iPhone users should go to the App Store. What to Do in Case You Have Become a Victim of Ransomware What if you've already been under a ransomware attack and you are unaware of it? It's critical to know what to do in the event of a ransomware attack. Here are some easy steps that may help reduce damage to some extent. If you're hit by ransomware, the first thing you should do is disconnect from all networks and the internet. By disconnecting, you isolate your computer and limit the ransomware virus from spreading to other devices. It's advisable to consult a cybersecurity professional before paying ransom to cybercriminals. They will learn the situation and advice you to act accordingly. Summing Up Ransomware is difficult to detect and defend against. Organizations, on the other hand, can take steps to protect their systems and sensitive data by taking necessary precautions. The first thing to do is to educate employees about common red flags and vulnerabilities, set up processes and procedures for preventative monitoring, and install anti-ransomware software and tools. Frequently Asked Questions How does ransomware work? Ransomware encrypts files on a computer and prevents the user or organization from accessing them. This malware encrypts files and demands a ransom for the decryption key. This puts businesses in a situation where paying the ransom is the most convenient way for them to get back the data. Is it possible to remove ransomware? Robust cybersecurity software can be used to decrypt ransomware files. A cybersecurity specialist should assist you at every step of the ransomware eradication process with the ransomware removal tool. However, retrieving all the files may not always be possible. Is it possible to detect ransomware? Ransomware can be identified at the network level by checking for unusual traffic patterns. This can signal a ransomware infestation or malware in general.

Read More
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Combating the Risk of SQL Injection Attacks – Part 1

Article | July 29, 2022

Structured Query Language or SQL, is the command-and-control language used by relational databases, including Microsoft SQL Server, Oracle, IBM DB2, and MySQL. Relational databases are a significant resource on the back end of online applications and content management systems (CMS) developed in PHP, .NET, Java EE, Hibernate, SQLite, or other scripting languages in current web development. SQL injection is among the most dangerous web application vulnerabilities. It happens when a user inserts untrusted data into a database query. For example, while completing an online form. Smart attackers can construct user input to steal vital data, circumvent authentication, or damage the entries in your database when SQL injection is possible. SQL injection attacks come in many types, but they always originate from the same source. The query string is combined with the user's untrusted data. As a result, the user's input might change the query's original intent. Types of SQL Injection Attacks SQLi attacks can be roughly classified into three categories when it comes to SQL injection types: In-Band SQLi In-band SQLi is one of the most prevalent types of SQL injection, in which the data appears on the same channel as the malicious code. Two of the most common in-band SQL injection attack approaches are error-based and union-based SQL injection attacks. A verbose error (retrieved data) appears on the web page in response to a faulty or unexpected query in error-based SQLi attacks (the malicious user input). Union-based SQLi combines the results of two or more SELECT statements into a single query. It could be used to get information from several tables in a database. Out-of-Band SQLi Out-of-Band SQLi is a sort of SQL injection that is less prevalent. This occurs when the attacker is unable to retrieve the data utilizing the same channel through which the attack was conducted. The attacker's answer is provided through other channels, such as email, or it is dependent on the capabilities of the application's database server to perform DNS or HTTP connections to a server controlled by the attacker. Inferential SQLi There is no actual data transmission with this sort of SQL injection, often known as blind SQLi. Attackers, on the other hand, can watch how the application responds to payloads, giving them information on whether the query is run or how the database processes the requests. Although it is considerably simpler to recreate the logic of the original question with verbose errors, an attacker who is successful in executing a blind SQL injection attack on the application can reverse engineer the logic to get at the original query. Another often used approach is a time-based blind SQLi attack, which includes evaluating the latency in response to determine whether or not the query is run. There is no delay in page loading after submitting the given request. If the comment is changed, as seen below, and there is a delayed response, the query was run. The attacker presently understands how to leverage the application's syntax for commenting out sections of a query. Once they get this information, they can use it to continue targeting the application in subsequent ways. Tips to prevent SQL infection will be disclosed in our next article: Combating the Risk of SQL Injection Attacks—Part 2

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